Pith Number

pith:AHEGA6JP

pith:2018:AHEGA6JPVIYKT4DL6N76HMGDVG

not attested not anchored not stored refs pending

Toric geometry of Spin(7)-manifolds

Andrew Swann, Thomas Bruun Madsen

arxiv:1810.12962 v2 · 2018-10-30 · math.DG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AHEGA6JPVIYKT4DL6N76HMGDVG}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:01:48.516347Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

01c860792faa30a9f06bf37fe3b0c3a99e4f378feea9e19a2fb42caf50c4af45

Aliases

arxiv: 1810.12962 · arxiv_version: 1810.12962v2 · doi: 10.48550/arxiv.1810.12962 · pith_short_12: AHEGA6JPVIYK · pith_short_16: AHEGA6JPVIYKT4DL · pith_short_8: AHEGA6JP

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/AHEGA6JPVIYKT4DL6N76HMGDVG \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 01c860792faa30a9f06bf37fe3b0c3a99e4f378feea9e19a2fb42caf50c4af45

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "251369cff14a630354ec1a830ea01d89079a49511e6573aafac44aef8d41f1ec",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2018-10-30T18:41:52Z",
    "title_canon_sha256": "161b462961e9762e1bea155cb2c75eb76301a333d70340443d53f9b99a012536"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.12962",
    "kind": "arxiv",
    "version": 2
  }
}